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Glycyrrhizin as a potential disease-modifying therapy for epilepsy: insights into targeting pyroptosis to exert neuroprotective and anticonvulsant effects.
Front Pharmacol
January 2025
Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Background: For patients with epilepsy, antiseizure medication remains the primary treatment; however, it is ineffective in approximately 30% of cases. These patients experience progressive neuronal damage and poor outcomes. Therefore, there is an urgent need for disease-modifying therapy (DMT) that targets the pathogenesis of epilepsy.
View Article and Find Full Text PDFOuter hair cells stir cochlear fluids.
Elife
January 2025
Department of Mechanical Engineering, University of Rochester, Rochester, United States.
We hypothesized that active outer hair cells drive cochlear fluid circulation. The hypothesis was tested by delivering the neurotoxin, kainic acid, to the intact round window of young gerbil cochleae while monitoring auditory responses in the cochlear nucleus. Sounds presented at a modest level significantly expedited kainic acid delivery.
View Article and Find Full Text PDFRegulation of MAP2, GFAP, and calcium in the CA3 Region Following Kainic Acid Exposure to organotypic hippocampal slice culture.
F1000Res
January 2025
Faculty of Teaching and Education Sciences, Islamic University of Malang, Malang, East Java, Indonesia.
Background: Neurodegeneration due to neurotoxicity is one of the phenomena in temporal lobe epilepsy. Experimentally, hippocampal excitotoxicity process can occur due to kainic acid exposure, especially in the CA3 area. Neuronal death, astrocyte reactivity and increased calcium also occur in hippocampal excitotoxicity, but few studies have investigated immediate effect after kainic acid exposure.
View Article and Find Full Text PDFMice deficient in TWIK-1 are more susceptible to kainic acid-induced seizures.
iScience
January 2025
School of Biosystems and Biomedical Sciences, College of Health Sciences, Korea University, Seoul 02841, Republic of Korea.
TWIK-1 belongs to the two-pore domain K (K2P) channel family, which plays an essential role in the background K conductance of cells. Despite the development of exon 2-deleted knockout (KO) mice, the physiological role of TWIK-1 has remained largely unknown. Here, we observed that the exon 2-deleted KO mice expressed an internally deleted TWIK-1 (TWIK-1 ΔEx2) protein, which unexpectedly acts as a functional K channel.
View Article and Find Full Text PDFActivation of glutamine synthetase (GS) as a new strategy for the treatment of major depressive disorder and other GS-related diseases.
Acta Pharmacol Sin
January 2025
Department of Anatomy and Convergence Medical Science, College of Medicine, Institute of Medical Science, Tyrosine Peptide Multiuse Research Group, Anti-aging Bio Cell Factory Regional Leading Research Center, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Glutamine synthetase (GS) plays a crucial role in the homeostasis of the glutamate-glutamine cycle in the brain. Hypoactive GS causes depressive behaviors. Under chronic stress, GS has no change in expression, but its activity is decreased due to nitration of tyrosine (Tyr).
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